Awning window



.T. HAUCK AWNING WINDOW March 19, 1963 Filed July 2, 1959 2 Sheets-Sheet 1 INVENTOR THEODORE H/QUC'A ATTORNEYS T. HAUCK AWNING WINDOW March 19, 1963 Film ed July 2, 1959 2 Sheets-Sheet 2 INVENTO R 7" 195 00025 Mal/CK BY 60%, m

ATTORNEYS United States Patent 3,081,502 AWNING WINDOW Theodore Hauck, Amityville, N.Y., assignor to General Bronze Corporation, Garden City, N.Y. Filed July 2, 1959, Ser. No. 824,697 4 Claims. (Cl. 20-42) This invention relates to an improved self-compensating linkage for awning-type windows. This application is a continuation-in-part of co-pending application Serial No. 401,988, filed January 4, 1954, which became US. Patent 2,901,065 on August 26, 1959.

An object of the invention resides in providing a window of the character referred to wherein the sashes are moved to open and closed positions and locked and unlocked by means of a simple yet effective linkage which can be mass produced to operate effectively in spite of minor dimensional variations.

Another object of the invention resides in so construct ing the window that the lower sash may be unlocked and partially opened prior to the unlocking and opening of all or any of the remaining sashes to effectuate a controllable opening, closing and ventilation.

A typical awning window has a frame supporting a plurality of sashes arranged in a vertical series, each pivoted to swing or open horizontally outward. The individual sashes are pivoted at their respective top corners to operating slide bars which are vertically movable along the opposite sides of the frame. The sashes are also connected by short links to the frame so that by sliding the operating bars down or up, the window can be fully opened or fully closed, respectively.

Where windows of this kind are mass produced, slight variations in the dimensions at the operating parts occur and this in the past has made it difiicult to close all the sashes of a window tightly. Moreover, because of even minute differences in length, some of the window parts are loaded or strained far more than others during normal operation of the window. This also tended to keep one or more sashes of the window partly open when they should all be tightly closed. The present invention eliminates this difiiculty and provides a simple linkage arrangement for every sash in a window of this kind.

In accordance with the invention there is provided in each sash operating linkage in an awning-type window a lost-motion connection which compensates for minor dimensional variations. When each sash is finally closed, the links and pivots supporting it are put under uniform strain by resilient members carried by the frame and acting with spring-like force on these elements. Thus no one of them will be subjected to excessive strain as might happen in other windows.

A better understanding of the invention together with a fuller appreciation of its many advantages will best be gained from the following description given in connection with the accompanying drawings wherein:

FIGURE 1 is a side view of a window identical to the one shown in the above-identified parent patent application;

FIGURE 2 is similar to FIGURE 1 but shows the upper sash closed and locked and the lower sash still partly open;

FIGURE 3 is similar to FIGURE 2 but shows the lower sash also closed and locked;

FIGURE 4 is a section view taken as indicated by lines 44 in FIGURE 3;

FIGURE 5 is a section view similar to FIGURE 4 but taken on lines 5-5 in FIGURE 2; and

FIGURE 6 is an enlarged portion of FIGURE 3.

The awning-type window 10 seen in FIGURE 1 comprises a frame 12 having a sill 14, jambs 16 and a header 18. Mounted on the frame for swinging open, as shown,

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or closed are an upper sash 20 and a lower sash 22. The top of the lower sash is pivoted at point 24 to a slide-bar 26 vertically movable along the inner face of a jamb 16, there being a corresponding pivot and slidebar on the opposite jamb (not shown). Pivoted near the middle of the side of sash 22 at point 28 is a link 30 whose lower end is pivoted to jamb 16 at point 32. By moving slide-bar 26 up or down through a linkage not shown, but which can be identical to that described in the above-identified co-pending application, this sash and the upper one can be closed or opened respectively.

Pivot 24 is adapted to slide in a vertical slot 34 in slide-bar 26. However, in the position of FIGURE 1 this pivot is held against the top of the slot by a cam plate 36, see also FIGURES 5 and 6, fixed to the sash and having an arcuate rim 38 which engages the top of a tab 40 projecting from slide-bar 26. Parts associated with upper sash 20 which are like the ones described in connection with the lower sash are designated by primed numerals.

As slide-bar 26 moves upward, the sashes are swung inward, upper sash 20 closing first and then lower sash 22. When each sash comes flush against the frame, its corresponding cam plate, as illustrated by cam plate 36 in FIGURES 3 and 6, is rotated sufficiently counterclockwise so that its rim 38 passes clear of tab 40. Thereupon, slide-bar 26 is free to move upward while sash pivot 24 remains stationary and slides in slot 34. The slide-bar in this final upward movement positions tab 40 athwart the end of rim 38 (see also FIGURE 4) thus providing a locking action. In addition, as seen in FIGURES 2 and 3, a latch cam 42 carried on the slide-bar engages and slides behind a similar latch 44 on sash 22. This provides a very strong lock for the sash, an identical arrangement being provided for the upper sash. Upper slots 34' are of course somewhat longer than lower slots 34, to permit slide-bar 26 to travel a sufficient distance to close and lock both sashes.

When upper sash 20 is finally closed against the frame as seen in FIGURE 2, its upper edge 45 is resiliently forced against a length of Weatherstripping 46 on header 18. Similarly, the upper edge 47 of lower sash 22 is resiliently seated against a length of Weatherstripping 48 on the lower edge of the upper sash, and its lower edge 49 against a length of Weatherstripping 50 on sill 14.

Opening of these sashes is accomplished in reverse order.

The lost-motion connection provided by pivot 24 and slot 34 permits sequential closing of the sashes and the sliding lock action described. The resiliency of weatherstripping 46, 48 and 50 puts an even strain on the sash pivots in spite of minor dimensional variations. Thus, the operating linkages of this window are self-compensating and in closed position are under resilient rather than positive mechanical strain.

I claim:

1. An improved, self-compensating multiple-sash awning window comprising a frame surrounding a window opening, a lower sash and at least one upper sash mounted on said frame for swinging open or closed, a pair of slide-bars slidably mounted on opposite vertical inner faces of said frame, a first pair of pivot means connecting the upper corners of each sash to said slidebars, a second pair of pivot means on the sides of each sash, a third pair of pivot means on said frame, there being lost-motion connections associated with one of said pairs of pivot means with each sash to permit said sash to slide independently of the motion of said slide bars, a pair of slide links connected between said second and third pivot means, and resilient compressible means carried by said frame and engageable by a portion of a sash to exert a resilient downward force against said sash tending to move the same on one of its pivots so that when said sash is moved pivotally, it will close against the action of said resilient compressible means and said lostmotion connection will relieve uneven strains on the pivot means.

2. The window as in claim 1 in further combination with lock means acting between said sashes and said frame to positively hold them thereagainst and to oppose said resilient means.

3. An awning-type window having a plurality of vertically arranged sashes, each with .individual compensation for minor dimensional-differences in the linkages associated therewith, said window comprising a frame; a plurality of sashes mounted in said frame; a pair of operating -bars slidably mounted in said frame; a plurality of side-supporting linkages for said sashes, each linkage comprising a first pivotal connection between a top corner of the corresponding sash and an operating bar, a supporting link, a second pivotal connection between said supporting link and said sash, a third pivotal connection between said supporting link and said frame, and lost-motion means for each sash associated with one of said pivotalconnec'tions; and frame-mounted resilient References Cited in the file of this patent UNITED STATES PATENTS 2,292,133 Larson Aug. 4, 1942 2,486,407 Hoffman Nov. 1, 1949 2,622,672 Thomas Dec. 23, 1952 2,690,336 Belmont Sept. 28, 1954 2,718,676 Donovan et al "Sept. 27, 1955 2,799,903 Alexander July 23, 1957 2,936,497 Reynaud May 17, 1960 2,952,882 Reynaud Sept. 20, 1960 

1. AN IMPROVED, SELF-COMPENSATING MULTIPLE-SASH AWNING WINDOW COMPRISING A FRAME SURROUNDING A WINDOW OPENING, A LOWER SASH AND AT LEAST ONE UPPER SASH MOUNTED ON SAID FRAME FOR SWINGING OPEN OR CLOSED, A PAIR OF SLIDE-BARS SLIDABLY MOUNTED ON OPPOSITE VERTICAL INNER FACES OF SAID FRAME, A FIRST PAIR OF PIVOT MEANS CONNECTING THE UPPER CORNERS OF EACH SASH TO SAID SLIDEBARS, A SECOND PAIR OF PIVOT MEANS ON THE SIDES OF EACH SASH, A THIRD PAIR OF PIVOT MEANS ON SAID FRAME, THERE BEING LOST-MOTION CONNECTIONS ASSOCIATED WITH ONE OF SAID PAIRS OF PIVOT MEANS WITH EACH SASH TO PERMIT SAID SASH TO SLIDE INDEPENDENTLY OF THE MOTION OF SAID SLIDE BARS, A PAIR OF SLIDE LINKS CONNECTED BETWEEN SAID SECOND AND THIRD PIVOT MEANS, AND RESILIENT COMPRESSIBLE MEANS CARRIED BY SAID FRAME AND ENGAGEABLE BY A PORTION OF A SASH TO EXERT A RESILIENT DOWNWARD FORCE AGAINST SAID SASH TENDING TO MOVE THE SAME ON ONE OF ITS PIVOTS SO THAT WHEN SAID SASH IS MOVED PIVOTALLY, IT WILL CLOSE AGAINST THE ACTION OF SAID RESILIENT COMPRESSIBLE MEANS AND SAID LOSTMOTION CONNECTION WILL RELIEVE UNEVEN STRAINS ON THE PIVOT MEANS. 